age = int(input("请输入你的年龄"))

if age >= 18:
    print("你已经成年啦")
else:
    print("你还未成年")


num1 = 25
num2 = 1
while(num1 != num2):
    num2 = int(input("请输入你猜的数字："))
    if num1 > num2:
        print("你输入的值太小了")
    elif num1 < num2:
        print("你输入的值太大了")
print("猜对了")






num = int(input("请输入一个数字："))
if num % 2 ==0:
    if num % 3 ==0:
        print("这个数字既能被2也能被3整除")
    else:
        print("这个数字能被2整除，不能被3整除")
else:
    if num % 3 ==0:
        print("这个数字可以被3整除，不能被2整除")
    else:
        print("这个数字既不能被2也不能被3整除")




sum = 0
a = 1
while(a <= 100):
    sum = sum + a
    a = a + 1
print(sum)


while(a == 1):
    print("无限循环中！！！")


count = 0

while count < 5:
    print(str(count),"<5")
    count = count + 1
else:
    print(str(count)+"=5")



list1 = [1,2,3,4,5]
for  i in list1:
    print(i)

str1 = 'abcdefg'
for j in str1:
    print(j)


for i in range(5):
    print(i)



for i in range(2,10):
    print(i)


for i in range(0,11,3):
    print(i)

